Permanent magnet dynamo electric machine, and permanent...

Details Permanent magnet dynamo electric machine, and permanent... Permanent magnet dynamo electric machine, and permanent...

2005-05-17

2005-05-17

Lam, Thanh (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S261100, C310S216006

Reexamination Certificate

active

06894413

ABSTRACT:
A dynamo electric machine includes a rotor having magnetic poles with permanent magnets and a stator having armature windings concentratedly wound around teeth. When the number of pole pairs of the magnetic poles of the rotor is P, diameter of the rotor is D (meters), and a spatial harmonic order of a predetermined harmonic component of an armature magnetomotive force of the rotor is N ((N=P to the 1.5thpower)×(N to the minus 4-th power)×(the square of P)×D<0.6 (in meters).

REFERENCES:
patent: 6426579 (2002-07-01), Oda et al.
patent: 6566778 (2003-05-01), Hasegawa et al.
patent: 6657348 (2003-12-01), Qin et al.
patent: 10-210689 (1998-08-01), None
patent: 2000-060096 (2000-02-01), None
patent: 2000-125493 (2000-04-01), None
patent: 2001-054271 (2001-02-01), None

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